My 4.8 is getting tired. Need a project for the winter... besides a 6.0 iron block, what do I need to build a 408 with around 11:1 cr, ready for nitrous.
can I get away with using 862's ported with big valves? Or is there another head I should be looking at.... since this is going to be a N/A setup plus maybe a 150-200 shot, what sort of number will I be seeing?

Thanks